![Sanat Chattopadhyay](data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="%231b1b1b" class="bi bi-person-fill" viewBox="0 0 16 16"><path d="M3 14s-1 0-1-1 1-4 6-4 6 3 6 4-1 1-1 1zm5-6a3 3 0 1 0 0-6 3 3 0 0 0 0 6"/></svg>)
Sanat Chattopadhyay
Director/Board Member at
ASHLAND INC.
Net worth: 29 M $ as of 30/09/2026
Profile
Sanat Chattopadhyay currently works at MSD Wellcome Trust Hilleman Laboratories Pvt Ltd., as Director, Ashland, Inc., as Independent Director from 2023, Merck & Co., Inc., as EVP & President-Merck Manufacturing Division from 2016, and USA-India Chamber of Commerce, as Member from 2016.
Mr. Chattopadhyay also formerly worked at Aventis Pharmaceuticals, Inc., as SVP-Product Development & Supply from 2003 to 2005, Merck Sharp & Dohme Corp., as Executive VP & President-Manufacturing Division, and Wyeth Pharmaceuticals, Inc., as VP-Technical Operations & Product Supply from 2005 to 2007.
Mr. Chattopadhyay received his graduate degree from National Institute of Industrial Engineering and undergraduate degree from Jadavpur University.
Known holdings in public companies
| Company | Date | Number of shares | Valuation | Valuation date |
|---|---|---|---|---|
MERCK & CO., INC. 0.01% | 29/04/2026 | 200,675 ( 0.01% ) | 29 M $ | 30/09/2026 |
| 30/09/2026 | 2,263 ( 0% ) | 153 703 $ | 30/09/2026 |
Sanat Chattopadhyay active positions
| Companies | Position | Start |
|---|---|---|
| MERCK & CO., INC. | Corporate Officer/Principal | 01/11/2009 |
| ASHLAND INC. | Director/Board Member | 13/11/2023 |
MSD Wellcome Trust Hilleman Laboratories Pvt Ltd.
 MSD Wellcome Trust Hilleman Laboratories Pvt Ltd. BiotechnologyHealth Technology Develops and researches vaccines | Director/Board Member | - |
USA-India Chamber of Commerce | Corporate Officer/Principal | 01/01/2016 |
Former positions of Sanat Chattopadhyay
| Companies | Position | End |
|---|---|---|
Wyeth Pharmaceuticals, Inc.
 Wyeth Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops and manufactures pharmaceutical products | Corporate Officer/Principal | 01/01/2007 |
Aventis Pharmaceuticals, Inc.
 Aventis Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Manufactures and markets pharmaceutical products | Corporate Officer/Principal | 01/01/2005 |
Merck Sharp & Dohme Corp.
 Merck Sharp & Dohme Corp. Pharmaceuticals: MajorHealth Technology Develops and markets pharmaceutical products | Corporate Officer/Principal | - |
Education of Sanat Chattopadhyay
Experiences
Positions held
Active
Inactive
Listed companies
Private companies
Connections
88
1st degree connections
9
1st degree companies
Male
Female
Members of the board
Executives
Linked companies
| Private companies | 9 |
|---|---|
Merck & Co., Inc.
 Merck & Co., Inc. Pharmaceuticals: MajorHealth Technology Manufactures human and animal health pharmaceutical products & vaccines | Health Technology |
Aventis Pharmaceuticals, Inc.
Aventis Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Manufactures and markets pharmaceutical products | Health Technology |
National Institute of Industrial Engineering
 National Institute of Industrial Engineering Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Jadavpur University
 Jadavpur University Other Consumer ServicesConsumer Services Functions as a College/University | Consumer Services |
Merck Sharp & Dohme Corp.
Merck Sharp & Dohme Corp. Pharmaceuticals: MajorHealth Technology Develops and markets pharmaceutical products | Health Technology |
MSD Wellcome Trust Hilleman Laboratories Pvt Ltd.
MSD Wellcome Trust Hilleman Laboratories Pvt Ltd. BiotechnologyHealth Technology Develops and researches vaccines | Health Technology |
Ashland, Inc.
 Ashland, Inc. Food: Specialty/CandyConsumer Non-Durables Manufactures and markets specialty ingredients, performance materials and valvoline | Consumer Non-Durables |
Wyeth Pharmaceuticals, Inc.
Wyeth Pharmaceuticals, Inc. Pharmaceuticals: MajorHealth Technology Develops and manufactures pharmaceutical products | Health Technology |
USA-India Chamber of Commerce |
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